-2x^2+4x+3=

Simple and best practice solution for -2x^2+4x+3= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for -2x^2+4x+3= equation:


Simplifying
-2x2 + 4x + 3 = 0

Reorder the terms:
3 + 4x + -2x2 = 0

Solving
3 + 4x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
-1.5 + -2x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + -2x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + -2x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + -2x + x2 = 0 + 1.5
-2x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
-2x + x2 = 1.5

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 1.5 + 1

Reorder the terms:
1 + -2x + x2 = 1.5 + 1

Combine like terms: 1.5 + 1 = 2.5
1 + -2x + x2 = 2.5

Factor a perfect square on the left side:
(x + -1)(x + -1) = 2.5

Calculate the square root of the right side: 1.58113883

Break this problem into two subproblems by setting 
(x + -1) equal to 1.58113883 and -1.58113883.

Subproblem 1

x + -1 = 1.58113883 Simplifying x + -1 = 1.58113883 Reorder the terms: -1 + x = 1.58113883 Solving -1 + x = 1.58113883 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 1.58113883 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.58113883 + 1 x = 1.58113883 + 1 Combine like terms: 1.58113883 + 1 = 2.58113883 x = 2.58113883 Simplifying x = 2.58113883

Subproblem 2

x + -1 = -1.58113883 Simplifying x + -1 = -1.58113883 Reorder the terms: -1 + x = -1.58113883 Solving -1 + x = -1.58113883 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -1.58113883 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.58113883 + 1 x = -1.58113883 + 1 Combine like terms: -1.58113883 + 1 = -0.58113883 x = -0.58113883 Simplifying x = -0.58113883

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.58113883, -0.58113883}

See similar equations:

| 19c-16c-c+2c-2c=14 | | 3x-14=-5x+18 | | 325455342x+476646473r=1 | | 5.9w+8.9=3w | | 15t-7t-6t=18 | | 0.5(-4+6x)=.33x+.66(x+9) | | 19m-19m+3m-m-m=4 | | 8x-3(x-7)=3(x+2)-2 | | 9/14y=15/210 | | 7d+6=3 | | (m^x)^1/3=m^-12 | | 5(1+-1y)-2y=40 | | 7u-6u-u+u=12 | | -9x^2+5x+4= | | 8x-3x+5=15 | | -30+2.5(8)=x | | X3/x | | 15m-14m=9 | | -16t+18t-12t=14 | | X/12=45/30 | | 34=3n+64 | | -9x^2+7x+1= | | 2(-30+2.5y)+3y=4 | | 12k+3k-6k+2k=15 | | 25x+10y=5.10 | | -4(2x+6)=-5x+3 | | 4x-24+2x+7=180 | | (-8x-2)(5x^2)(x)= | | 5/n-2.5=-1 | | 1/2*x-1/3*x=7/3 | | 10m-9m=18 | | https://d3upxwx9bggvi1.cloudfront.net/binary/img/ti/a7ee4a_7/a7ee4a_7.13.png |

Equations solver categories